3M 5778 Six-Inch Soft Hookit Painter's Backup Pad
The 5778 Painter's pad provides soft foam support for compatible six-inch Hookit discs during automotive paint preparation. Its 15-degree tapered edge and soft density distinguish it from a firm pad intended for flat removal work. The pad is a support accessory; choose the abrasive grade and machine connection separately.
Specifications and included details
- Diameter: 6 inches.
- Hookit disc attachment.
- Soft-density foam.
- 15-degree tapered edge.
- Listed connection: 5/16-24; compatibility described with sanders having internal threads.
Before ordering
Confirm the exact machine-side thread, engagement and operating limits with the manufacturer. Match the Hookit disc and coating preparation specification. Soft foam does not guarantee against edge damage or coating burn-through, and the pictured purple disc does not establish an included abrasive quantity or grade.
Product questions and answers
Is this a firm pad for flat aggressive removal?
It is described as a soft-density painter's pad with a 15-degree tapered edge. Choose pad support around the specified sanding task.
Does the purple disc in the photo establish the included grit?
No abrasive grade or quantity is itemized as included. Confirm any package accessories and choose matching discs for the job.
Does a six-inch diameter alone confirm machine fit?
No. Verify the 5/16-24 connection and the sander manufacturer's pad and speed requirements.
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